Car part



Dec. 20, 1927. 1,653,091

E. I. DODDS CAR PART- Filed July 16, 1923 0 o O O O o o o o o o oJWLKHZUUHIH r? X 2 V M I 0- I 4 'ATTORV Y6 Patented Dec. 20, 19 27.

' are st ETHAN I. IDODDS, OF PITTSBURGH, PENNSYLVJaNIA, ASSIGIIOB, TOUNION METAL PRODUCTS COMFAI-I'EZ,

or onroaeo, itLnnvoisn oonroneaifon ornnLAwARn one PART. i

Application med: July :16, 1923. seriai No. 651,905. p '1 r Thisinvention'relates to improvements in carfparts and more particularly tosuch as are adaptable for use in forming ends, sides, roof or doorsheets for metal railway cars.

Car ends or side sheets as heretofore:con- 'structed have been subjectedto strain which has caused them to becon o more or less distorted beforethey finally assume a condition which will constitute their elasticlimit, in

which condition they will serveto a greater or less extent to sustainthe load which they are intended to carry.

One object of my present invention is to so form a car part or sheetthat it shall, in its manufacture, be made to assume the condition whichcar sheets as heretofore constructed have had to assume after inltialuse1n service, and thus to provide a car sheet orpart which, at the verybeginning of its use in a car shall be capable of sustaining the loadwithout distortion to bring it to the limit of its elastic displacement.

A further object is to so form a sheet having the characteristics abovementioned that the metal of the sheet shallnot be weakened in any wayand to shape the sheet in such manner that its load-sustaining propertythereof shall be enhanced.

With these and other objects in view, the invention consists in certainnovel features of construction and combinations of parts as hereinafterset forth and pointed out in the claims.

- In the accompanying drawings,-

Figure 1 is a face view of a sheet or sheet section embodying myinvention.

Figure 2 is an edge view of the same.

v Figure 3 is an end view. v

Figure 1 is a perspective view of an elongated sheet or section showinga slight modification of the construction illustrated in Figure 1.

Figure 5 is a face view illustrating two sheet sect ons united bywelding, and

Figure 6 is a similar VIEW showing sheet sections united by riveting.

In the embodiment of the invention the metal is pressed, either hot orcold, in suit-- able dies so that its central portion may be so bulgedas to form inclined faces 12 and The triangular end walls l 5 may beapproximatelycoincident with the end edges of the sheet'and theirapice's meetthe ends'ofthe'apex 6 formed bytlie two longitudinalinclined walls 1 and 21 The ends of the sheet may be provided withflanges 8, and these flanges'may have suitable I rivetor bolt holes 9.;I'prefeihowever-not to provide thesideedges of the sheet with" flangesand tlie'rivet holes will preferably be I located along or near theside. edges of "the sheet as indicated at 10, Figure 1. The side edgesof the inclined walls 1 and 2 will be. made to terminate somewhatinwardly from the side edges of the sheet and the rivet holes may belocated between the side edges of the sheets and the side edges of, thewalls -1 2. When a car end or side is made in sections, the side edgeportionsof the sheets or sections will not be flanged with the possibleexception of the upper edge of the upper sheetsection and in some casesit might be desirable to flange the lower edge of the lower section. 7 1r r In assembling the sheet sections to form a car end or side, thesections will be made to overlap at adjacent edge portions and theseoverlapping portions of the sheet sections may be secured together byriveting, as indicated at 13, Figure 6, or they may be made lain orwithout rivet holes and the overlapping edge, portions welded together,asindi;

of a metallic sheet having its central portion embossed to form flatsurrounding margins, said embossed-portlon comprlslng opposltelydisposed inclined longitudinal walls forming a ridge and triangularinclined end walls having their apices meeting said ridge and theirbases merging into said margins.

2. In combi'natiomwith the other elements of a railway car, an end walltherefor made of a metallic sheet'having its central portion embossed toform flat surrounding margins, the margins at the opposite ends beingbent to form perpendicular flanges, said embossed portion comprisingoppositely d'isposed inclined longitudinalwalls forming a ridge andtriangular incline'dend walls hav ingtheir apices meeting said ridgeandtheir bases merging into said margins.

3. In combination with the other elements of a railway car, an end walltherefor made of a plurality of metallic sheets each having their.central portion embossed to form flat surrounding margins which .aresecured to the margins of the ad acent sheet, said embossed portioncomprising oppositely disposed inclined longitudinal, walls formingridges and triangular inclined end walls having their apices meet ngsaid'ridge and I [their bases merging into said margins, the distancebetween the" ridges of adjacent sheets being substantially the same asthe width of said embossed portion.

In combination with the other elements of a railway car, an end walltherefor made of a plurality of metallic sheets each having theircentral portion embossed to form flat surrounding margins which aresecured to the margins of the adJaCent sheet, the marginsat the oppositeends being bent to form v perpendicular flanges, said embossed portioncomprising oppositely disposed inclined lon In testimony whereof, I havesigned this s specification.

,ETHAN I. DoDDsf

